I can fail you can fail he can fail we can fail you can fail they can fail
Forma con V-ing
I can be failing you can be failing he can be failing we can be failing you can be failing they can be failing
Perfetto
I can have failed you can have failed he can have failed we can have failed you can have failed they can have failed
Perfetto con V-ing
I can have been failing you can have been failing he can have been failing we can have been failing you can have been failing they can have been failing
Negazione
Forma semplice
I cannot fail you cannot fail he cannot fail we cannot fail you cannot fail they cannot fail
Forma con V-ing
I cannot be failing you cannot be failing he cannot be failing we cannot be failing you cannot be failing they cannot be failing
Perfetto
I cannot have failed you cannot have failed he cannot have failed we cannot have failed you cannot have failed they cannot have failed
Perfetto con V-ing
I cannot have been failing you cannot have been failing he cannot have been failing we cannot have been failing you cannot have been failing they cannot have been failing
Forma interrogativa
Forma semplice
can I fail? can you fail? can he fail? can we fail? can you fail? can they fail?
Forma con V-ing
can I be failing? can you be failing? can he be failing? can we be failing? can you be failing? can they be failing?
Perfetto
can I have failed? can you have failed? can he have failed? can we have failed? can you have failed? can they have failed?
Perfetto con V-ing
can I have been failing? can you have been failing? can he have been failing? can we have been failing? can you have been failing? can they have been failing?
Forma interro-negativa
Forma semplice
can I not fail? can you not fail? can he not fail? can we not fail? can you not fail? can they not fail?
Forma con V-ing
can I not be failing? can you not be failing? can he not be failing? can we not be failing? can you not be failing? can they not be failing?
Perfetto
can I not have failed? can you not have failed? can he not have failed? can we not have failed? can you not have failed? can they not have failed?
Perfetto con V-ing
can I not have been failing? can you not have been failing? can he not have been failing? can we not have been failing? can you not have been failing? can they not have been failing?